Title

Salt and Ice

Broad Question

What is the best way to melt ice?
Specific Question
What type of salt melts ice?

Hypothesis

I hypothesize that the finer salt will melt the ice best.

Graph of Hypothesis

Variables

Independent Variable:

Salt

Dependent Variable:

amount of ice

Variables That Need To Be Controlled:
time for ice to melt

Vocabulary List That Needs Explanation

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General Plan

I'm going to make two trays of ice. I will label one tray " Tray 1: fine salt" and the other " Tray 2: thick salt".

Potential Problems And Solutions

-The tray for the ice could break: I can put the tray in a safe place and not to high off the ground

Safety Or Environmental Concerns

Ice burn

Experimental Design

Number Of Comparison Categories:

I will be comparing two different kinds of salt

Number of Comparison Samples:

2 samples

Number Of Observation In Each Sample:

I will measure the amount of salt

When data will be collected

During the experiment

Where will data be collected?:

Home

Resources and Budget Table

Item	Number needed	Where I will get this	Cost
"tray"	2	home
water		home
salt: fine		home
sharpie	1	Home
salt: regular		home
salt: thick		home

Detailed Procedure

- Set up the trays and label them correctly
- Pour water in at an even level in each tray
- Place trays flat in freezer
- Take out trays from freezer after they are frozen completely
- Pour salt in an even layer in each tray
- After pouring salt, start timer for 35 minutes
- After time, see which one melted more
- Start next trial and repeat steps 1-7

Diagram

Photo List

- Tray of water
- Ice
- Cups of salt
Experiment set up

Time Line

February 1st- procedure, timeline and photo list complete
February 4th- Begin experiment
March 1st- Experiments done
March 7th- Analysis
March 15th- Discussion/Background
March 15th- Wiki complete
March 22nd- Posters complete
March 29th- KMS tour

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Data Table

	Fine salt	Sea Salt	Thick Salt
*FIRST TRIAL*
10 minutes-	No signs of melting, Still in cude form	Slight melting . Puddle Forming	1/4 melted
20 minutes-	Ice cube started to melt, small puddle forming	1/4 of the cube melted	fully melted
30 minutes-	1/4 of the cube melted	1/2 melted	3/4 melted
*SECOND TRIAL*
10 minutes-	1/4 melted	3/4 melted	3/4 melted
20 minutes-	1/4 melted	completely melted	completely melted
30 minutes-	1/4 melted	completely melted	completely melted

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Data Analysis

All Raw Data

Graphs

Photos

Results

At the end of the experiment, The thick salt worked the best and the fastest. The thick salt worked a lot better then the fine salt.

Conclusion

I hypothesized that the finer salt would melt the ice the best and the fastest. I reject my hypothesis. The fine salt melted the ice the slowest. The thinck salt melted it the quickest.

Discussion

I found that the thick the salt was, the faster the ice would melt. I was able to answer the experiment question. The data I had did not contain any errors. In a way it could be better, I could've used different salt and different ice.

Benefit to Community and/or Science

There is a benefit, It shows the best way to melt ice in the winter.

Background Research

References

Abstract

The experiment I chose was salt and ice. I chose this because I was really interested in finding easy and fast ways to melt ice. What I did was I put water into ice trays and froze them for about an hour and a half. I sectioned the ice trays into three sections: fine salt, regular salt and thick salt. I then took a spoonful of each different salt and poured the salt evenly over the ice. I checked every time minutes on the progress and after thirty minutes I checked the ice to see which melted the most. Result being the thick salt.